Warp stop-motion for looms.



D. OSGOOD.

WARP STOP MOTION FOR LOOMS.

APPLICATION FILED r3315, 191a.

Patented Feb. 23

I771) 67-11707? :Danq, OSj 004:2

THE NORRIS PETERS 60., PHOTC-LITHQ. WASHINGTON. L1v C.

DANA OSGOOD, 0F I-IOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY,OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

WAR-P STOP-MOTION FOR LOOMS.

Specification of Letters Patent.

Patented Feb. 23, 1915.

T all whom it may concern:

Be it known that I, DANA OSGOOD, of Hopedale, Worcester county,Massachusetts, have invented a new and Improved Warp Stop-Motion forLooms, of which the following is a specification.

The improvements are illustrated in the accompanying drawings, whichshow a vertical cross-section of so much of a loom as is necessary toenable the invention to be understood.

In the drawings, A, A, are thin sheet metal. drop-bars or detectors,each having a longitudinal slot at; B, B, are two sheet metal leaserods, each having inturned separated beads b, b, underneath with a gapbetween them, so that each lease rod has a longitudinally extendinggroove or recess on its underside; G, G, are guide bars, one for eachbank of detectors, each guide bar extending through the slots a, of thedetectors of one bank; D, and E, are the two sheds of Warp threadsdivided into intersecting planes by the lease rods; and F, is an arrowindicating the direction of feed of the warp threads in the loom. Eachwarp thread passes through the slot of one of the detectors, andnormally supports that detector which is thus suspended. There are asmany detectors in both banks as there are warp threads in the loom. Thedetectors are suspended from the bottom sheds.

Each guide C, is directly beneath one of the lease rods B, so that theupper ends of the detectors in one bank extend within the recess on theunder side of the correspond ing lease rod. Hence it is impossible forthe detectors of one bank to come into contact with the warp threadsfrom which the other bank of detectors is suspended, thereby avoidingchafing of the threads of one shed by the detectors belonging to theother shed. The head of each detector is normally well below the underface of the top of the lease rod above it, and the recess is wider thanthe detector, so that the detector is not in contact with the lease rod.

Each detector is free to move vertically both up and down and laterallyboth ways, so that the detectors accommodate themselves to the threadsand the strains thereon.

In case a warp thread breaks its detector drops, being guided by itsguide bar 0, and is suspended in its dropped abnormal position by saidguide bar. A detector in its dropped or abnormal position efl'ects thestoppage of the loom through any of the well-known cooperating deviceswhich may be electrical or mechanical, for example, in accordance withthe known teachings of the art.

I claim 1. A warp stop motion for looms comprismg, in combination, sheetmetal lease rods, each with a longitudinally extending recess on itsunderside, said rods dividing the warp threads into intersecting planes;a guide below each lease rod; and a bank of slotted thin sheet metaldrop-bars or detectors for each lease rod, the guide below each rodextending through the slots of all the detectors of one bank, and eachdetector being suspended from a warp thread with its head located withinthe recess of a lease rod, but out of contact therewith.

2. A warp stop motion for looms, comprising, in combination, lease rods,each recessed on its under side; a bank of detectors for each lease rod,each detector being suspended from a warp thread beneath a lease rod andwith its head within the recess of the lease rod, but out of contactwith the lease rod; and means for guiding the detectors.

3. A warp stop motion for looms comprising, in combination, leasingmeans to dispose the warp threads into intersecting planes, and a bankof detectors for each means, each detector being suspended verticallyfrom a single thread under one of the leasing means and out of contactwith all of the leasing means.

4. A warp stop motion for looms comprising, in combination, means todispose the warp threads into intersecting planes consisting of aleasing instrumentality forming the upper half of each lease and twoseparated instrumentalities forming the lower half of each lease, and abank of detectors for each plane of warp threads, each detector beingsuspended vertically from a single thread under and out of contact withthe leasing instrumentality forming the upper half of each lease, andbetween the two leasing instrumentalities forming the lower half of eachlease.

5. A Warp stop motion for looms having, in combination,a rod dividingthe warpcessed on its under side; a bank of detectors for each leaserod, each detector being sus- 10 pended from a Warp thread beneath alease rod, but out of contact With the lease rod; and means for guidingthe detectors.

In wltness whereof, I have hereunto signed my name in the presence oftwo subscribing Witnesses.

DANA OSGOOD.

Witnesses FRANK J. DUTGHER, J. L. REMINGTON, Jr.

flopieaiof this patent may be obtained for five cents each, byaddressing the Commissioner of Iatents.

Washington, D. G.

